XML 60 R40.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Income Taxes (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Income Tax Disclosure [Abstract] |
Schedule Of Income From Continuing Operations Before Income Taxes | Income (loss) before income taxes and income tax expense (benefit) are as follows:
(In thousands) | 2023 |  | 2022 |  | 2021
Income (loss) before income taxes: |  |  |  |  |
Domestic | $ | (175,510) |  |  | $ | 3,259 |  |  | $ | 22,774 |
Foreign | 15,480 |  |  | 29,585 |  |  | 44,336 |
Total | $ | (160,030) |  |  | $ | 32,844 |  |  | $ | 67,110 |
Current income tax expense (benefit): |  |  |  |  |
Federal | $ | 19 |  |  | $ | 2 |  |  | $ | 1,232 |
State | — |  |  | 772 |  |  | 764 |
Foreign | 1,954 |  |  | 3,071 |  |  | 13,521 |
Total | 1,973 |  |  | 3,845 |  |  | 15,517 |
Deferred income tax expense (benefit): |  |  |  |  |
Federal | (57,220) |  |  | 24 |  |  | (7,862) |
State | (280) |  |  | (537) |  |  | 125 |
Foreign | 1,402 |  |  | 1,057 |  |  | 1,504 |
Total | (56,098) |  |  | 544 |  |  | (6,233) |
Total income tax expense (benefit) | $ | (54,125) |  |  | $ | 4,389 |  |  | $ | 9,284 |
Summary Of Effective Income Tax Rate For Continuing Operations |
| 2023 |  | 2022 |  | 2021
(In thousands, except percentages) | Amount | % |  | Amount | % |  | Amount | %
Income tax expense (benefit) at federal statutory rate | $ | (33,622) |  | 21.0 |  |  | $ | 6,882 |  | 21.0 |  |  | $ | 14,116 |  | 21.0 |
Stranded taxes released with termination of pension | (21,912) |  | 13.7 |  |  | — |  | — |  |  | — |  | — |
Changes in estimates related to prior year tax provision | (1,322) |  | 0.8 |  |  | (175) |  | (0.5) |  |  | (383) |  | (0.6) |
Brazilian tax incentive | (876) |  | 0.5 |  |  | (3,873) |  | (11.8) |  |  | (7,019) |  | (10.4) |
Research and development tax credit | (766) |  | 0.5 |  |  | (1,489) |  | (4.5) |  |  | (928) |  | (1.4) |
Tax on Prodepe tax incentive | (488) |  | 0.3 |  |  | (1,024) |  | (3.1) |  |  | 2,858 |  | 4.3 |
State taxes, net of federal income tax benefit | (437) |  | 0.3 |  |  | 48 |  | 0.1 |  |  | 933 |  | 1.4 |
Foreign currency translation variation on intercompany loans | — |  | — |  |  | — |  | — |  |  | 1,374 |  | 2.0 |
Dividend received deduction net of foreign withholding tax | — |  | — |  |  | — |  | — |  |  | (109) |  | (0.2) |
Foreign derived intangible income deduction | — |  | — |  |  | (763) |  | (2.3) |  |  | — |  | — |
Tax contingency accruals and tax settlements | 1 |  | — |  |  | 88 |  | 0.3 |  |  | 202 |  | 0.3 |
Changes in federal valuation allowance | 237 |  | (0.1) |  |  | — |  | — |  |  | (5,415) |  | (8.1) |
Non-deductible other | 594 |  | (0.4) |  |  | 381 |  | 1.2 |  |  | 1,053 |  | 1.6 |
Foreign rate differences | 1,746 |  | (1.1) |  |  | 2,924 |  | 8.9 |  |  | 8,269 |  | 12.3 |
U.S. tax on foreign branch income | 2,720 |  | (1.7) |  |  | 1,390 |  | 4.1 |  |  | (5,667) |  | (8.4) |
Income tax expense (benefit) at effective income tax rate | $ | (54,125) |  | 33.8 |  |  | $ | 4,389 |  | 13.4 |  |  | $ | 9,284 |  | 13.8 |
Schedule Of Deferred Tax Liabilities And Assets | Deferred income tax assets and deferred income tax liabilities at December 31, 2023 and 2022, are as follows:
(In thousands) | 2023 |  | 2022
Deferred income tax assets: |  |  |
Pension and other postretirement obligations | $ | — |  |  | $ | 7,535 |
Employee benefits | 5,821 |  |  | 7,558 |
Basis difference in capital assets | 2,131 |  |  | 2,098 |
Inventory | 2,643 |  |  | 3,952 |
Asset write-offs, divestitures and environmental accruals | 1,025 |  |  | 1,075 |
U.S. federal and state NOL and credit carryforwards | 33,247 |  |  | 24,914 |
Capitalized R&D expenditures | 6,543 |  |  | 4,874 |
Other | 2,364 |  |  | 1,220 |
Lease liabilities | 2,711 |  |  | 3,328 |
Interest expense limitation | 2,592 |  |  | — |
Foreign currency translation gain adjustment | 591 |  |  | 1,224 |
Deferred income tax assets before valuation allowance | 59,668 |  |  | 57,778 |
Less: Valuation allowance | 15,078 |  |  | 13,807 |
Total deferred income tax assets | 44,590 |  |  | 43,971 |
Deferred income tax liabilities: |  |  |
Goodwill and identifiable intangibles | $ | 3,392 |  |  | $ | 10,533 |
Property, plant and equipment | 10,330 |  |  | 14,950 |
Foregone tax credits on foreign branch income | 1,880 |  |  | 719 |
Right-of-use leased assets | 2,409 |  |  | 3,147 |
Other | 1,545 |  |  | 722 |
Total deferred income tax liabilities | 19,556 |  |  | 30,071 |
Net deferred income tax assets (liabilities) | $ | 25,034 |  |  | $ | 13,900 |
Amounts recognized in the consolidated balance sheets: |  |  |
Deferred income tax assets (noncurrent) | $ | 25,034 |  |  | $ | 13,900 |
Deferred income tax liabilities (noncurrent) | — |  |  | — |
Net deferred income tax assets (liabilities) | $ | 25,034 |  |  | $ | 13,900 |
Schedule Of Unrecognized Uncertain Tax Positions | A reconciliation of the Company’s unrecognized uncertain tax positions since January 1, 2021, is shown below:
| Years Ended December 31,
(In thousands) | 2023 |  | 2022 |  | 2021
Balance at beginning of period | $ | 628 |  |  | $ | 648 |  |  | $ | 628 |
Increase (decrease) due to tax positions taken in: |  |  |  |  |
Current period | 25 |  |  | 2 |  |  | — |
Prior period | 23 |  |  | 44 |  |  | 40 |
Reductions due to lapse of statute of limitations | (17) |  |  | (66) |  |  | (20) |
Balance at end of period | $ | 659 |  |  | $ | 628 |  |  | $ | 648 |
Schedule Of Additional Information Related To Unrecognized Uncertain Tax Positions | Additional information related to unrecognized uncertain tax positions since January 1, 2021 is summarized below:
| Years Ended December 31,
(In thousands) | 2023 |  | 2022 |  | 2021
Gross unrecognized tax benefits on uncertain tax positions (reflected in current income tax, other noncurrent liability accounts, or deferred tax assets in the balance sheet) | $ | 659 |  |  | $ | 628 |  |  | $ | 648 |
Deferred income tax assets related to unrecognized tax benefits on uncertain tax positions (reflected in deferred income tax accounts in the balance sheet) | 98 |  |  | 143 |  |  | 48 |
Net unrecognized tax benefits on uncertain tax positions, which would impact the effective tax rate if recognized | 757 |  |  | 771 |  |  | 696 |
Interest and penalties accrued on deductions taken relating to uncertain tax positions (approximately $20, $16 and $26 reflected in income tax expense in the income statement in 2023, 2022 and 2021, respectively, with the balance shown in current income tax and other noncurrent liability accounts in the balance sheet) | 169 |  |  | 149 |  |  | 133 |
Related deferred income tax assets recognized on interest and penalties | (39) |  |  | (34) |  |  | (31) |
Interest and penalties accrued on uncertain tax positions net of related deferred income tax benefits, which would impact the effective tax rate if recognized | 130 |  |  | 115 |  |  | 102 |
Total net unrecognized tax benefits on uncertain tax positions reflected in the balance sheet, which would impact the effective tax rate if recognized | $ | 887 |  |  | $ | 886 |  |  | $ | 798 |

X
- Definition Schedule Of Additional Information Related To Our Unrecognized Uncertain Tax Positions [Table Text Block] + References No definition available. + Details
Name: | tg_ScheduleOfAdditionalInformationRelatedToOurUnrecognizedUncertainTaxPositionsTableTextBlock
Namespace Prefix: | tg_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule Of Unrecognized Uncertain Tax Positions [Table Text Block] + References No definition available. + Details
Name: | tg_ScheduleOfUnrecognizedUncertainTaxPositionsTableTextBlock
Namespace Prefix: | tg_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
Name: | us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 12 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
Name: | us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(1)(Note 1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 + Details
Name: | us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration